Does ChatGPT use my data for training?

Free ChatGPT users: yes, conversations may be used for training. ChatGPT Plus/Team/Enterprise users: data is not used for training. You can also opt out in settings for free accounts.

Is Claude more private than ChatGPT?

Claude does not use your conversations for training on any plan, including free. ChatGPT may use free-tier conversations for training. For privacy, Claude has the stronger default policy.

Can I run an AI model without sending data anywhere?

Yes. Open-source models like Llama, Mistral, and Qwen can run locally via Ollama or llama.cpp. All processing happens on your machine with zero data leaving your network.

What should I never share with AI assistants?

Never share passwords, API keys, social security numbers, medical records, financial account numbers, or any PII you would not share with a stranger. Use PII redaction tools before sending data to AI models.

AI Agent Data Access

Compare data access policies of Claude, ChatGPT, Gemini, DeepSeek, and open-source AI models. Data retention, training use, enterprise controls, and best practices for AI data privacy.